jingyi Stainless Steel 316 Carabiner Spring Snap Hook with Screw Lock Silver - 3/8 Inch,generic Utilitarian screw-lock carabiner snap links with high rust resistance Type 316 stainless steel snap link hook has superior strength & non-rust properties to 304 stainless Popular pear-shape for anchoring and connecting, spring-loaded gate Threaded nut locks gate in place for added security. See description for load limits Working load limits and (maximum gate opening): 3/8": 320 lbs (7/16").